In this work, Montmorillonite (Mt) obtained from Tokat, Reşadiye region having 0.91 mmol/g cation exchange capacity was modified by using Benzethonium Chloride (BZT). Organoclays, from Mt and BTZ, were prepared by using conventional and microwave heating methods and BTZ in amounts equivalent to ...
The tetrafluorosulphobenzoic acids 1,2-HO2C.C6F4.SO3H (I) and 1,4-HO2C.C6F4.SO3H (II) have been synthesised [1] by oxidation of respectively 4,5,6,7-tetrafluorobenzo [b] thiophen- 2-carboxylic acid (III) [2] and 4-mercaptotetrafluorobenzoic acid (IV) [3].By-products were obtained when (III) was ...
A solution of dibenzothiophene in membrane-filtered natural seawater was exposed to sunlight in a quartz vessel. The same solution in an amber glass vessel served as the dark control. Acidic photoproducts were isolated, identified and quantified from seawater, employing solid phase extraction an...
1.1. Isolation of a vanadium concentrate from commercial petroleum of the Kalamkas deposit was studied using sulphonic acids: p-toluensulphonic acid, sulphobenzoic, sulphosalicyclic and sulphanilic acids.2.2. Isolation of vanadium from petroleum is maximized using p-toluenesulphonic acid (after ...
Two new complexes of Ni and Zn with 4-chloro-2-nitrobenzenesulfonamide (ClNbsa) have been synthesized and characterized. The structure of the [Ni(ClNbsa)2(NH3)4] complex was determined by X-ray diffraction methods. It crystallizes in the monoclinic P21/c space group with a = 12.8679(3) Å, b = 7....
The energies of combustion for 2-nitrobenzenesulfonamide (cr), 3-nitrobenzenesulfonamide (cr), and 4-nitrobenzenesulfonamide (cr) were determined using a recently described rotating-bomb combustion calorimeter. The condensed phase molar energies of combustion obtained were −(3479.2 ± 1.0) kJ ·...
In this work, the molecular conformation and vibrational analysis of 2-, 3-, 4-nitrobenzenesulfonamide (abbreviated as 2-, 3-, 4-NBSA) were presented for the ground state using experimental techniques (FT-IR and FT-Raman) and density functional theory (DFT) employing B3LYP exchange correlation w...
Promoted by samarium in DMF, arenesulfonyl chlorides can be selectively reduced to diaryldisulfones, diarylthiosulfonates and diaryldisulfides in good to excellent yields by reaction temperature control without the need to pretreat or activate the metallic samarium.
A mild, practical and efficient strategy to prepare β-keto sulfones has been developed by visible light promoted reactions. This reaction involves Ir(ppy)2(dtbbpy)PF6 catalyzed direct funcationalization of alkenes with sulfonyl chlorides under mild conditions. Air was used as oxidant without an...
Completing an SAR study, a series of (RS)-6-substituted-7- or 9-(1,2,3,5-tetrahydro-4,1-benzoxazepine-3-yl)-7H or 9H-purines has been prepared under microwave-assisted conditions. Their antiproliferative activities on MCF-7 and MDA-MB-231 cancerous cell lines are presented, being the majority of...
The synthesis of five hitherto unknown isomeric fluoronitrobenzenesulfonyl chlorides is described. The compounds are prepared from difluoronitrobenzenes by a two-step procedure. In the first step the starting compounds undergo a regioselective reaction with phenylmethanethiol giving rise to the ...
A mild, practical and efficient strategy to prepare β-keto sulfones has been developed by visible-light-induced reactions. This reaction involved Ir(dtbbpy)(ppy)2PF6-catalyzed direct functionalization of alkynes with sulfonyl chloride and HCl using air as the oxidant. HCl not only acted as a hy...
Oxygenation of toluene was investigated with bis(3-nitrobenzenesulfonyl) peroxide (NBSP) in the presence of salts known to affect radical (cupric, cuprous, and cobaltous chlorides, and sodium hexachloroiridate (IV)) and ionic (aluminium chloride) processes. The yield and orientation of the isome...
Copolymers of metanilic acid (MA) and aniline (An) deposited from different ratios of the monomers in 0.1 M H2SO4 were characterized by elemental analysis, Fourier transform IR spectroscopy, UV-visible spectroscopy, cyclic voltammetry and scanning electron microscopy. The presence of a polyanili...
For the first time, poly(o-toludine-co-metanilic acid) (POM) layers have been deposited on mild steel (MS) substrate by galvanostatic (GS), potentiostatic (PS) and potentiodynamic (PD) methods. AC impedance of the electrodes has been analyzed. The shape and impedance parameters of galvanostatica...
4,4′-Methylene-bis-metanilic acid (A) was synthesized by the reaction between metanilic acid and formaldehyde. The compound (A) was used as a bifunctional middle component in the preparation of several symmetrical hot brand bis azo reactive dyes. The compound (A) was tetrazotized and coupled wi...
The degradation of aniline-metanilic acid copolymer (PMA) by potentiostatic anodic polarisation was compared with the degradation of polyaniline (PAn) in order to understand the function of the pendant groups in polymer degradation. The degradation of PMA was believed to follow the same reaction...
Copolymers of metanilic acid (MA) and aniline (An) were electrodeposited by cyclic voltammetry from dilute H2SO4 containing 0.1 M of MA and varying amounts of An. The MA content in the copolymers was determined by Fourier transform IR (FTIR) and UV-visible analyses of spectral features attributa...
Oxidation of aniline and its derivatives can yield cationic radicals, which induce chain reactions to produce polymeric materials with notable conductivity. When these events occur on ordered electrode surface, admolecules can be adsorbed in some specific manner that guides reactions to proceed ...
A poly(o-anisidine-co-metanilic acid)/activated carbon composite is evaluated as an active material for electrochemical supercapacitors. Poly(o-anisidine-co-metanilic acid) (PASM) is potentiodynamically deposited on an activated carbon (AC)-coated stainless-steel substrate, in a supporting elect...
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View